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S
ECTION
A. A Properly Trimmed Boat:
• Operates at a correct running attitude of a 3 to 5
degree angle to the water (bow slightly up).
• Reduces drag and increases fuel effi ciency
• Preserves good forward visibility.
• Increases safety.
Use short bursts of trim tab switches to adjust
trim tabs. Holding switches too long at once may
cause sudden steering problems. Adjusting one
trim tab more than the other will adjust list caused
by improper equipment storage, too many people
on one side or a strong cross wind.
REFER TO OWNER'S MANUAL PACKET FOR
INSTRUCTIONS AND WARRANTY INFORMATION.
E
T
FFECTS OF
RIMMING
(F
. 2.13.1)
IG
BOW-DOWN ("PLOWING")
PROPER TRIM (3-5
BOW UP ("PORPOISING")
EFFECTS OF PORT AND STBD TRIM TAB ADJUSTMENT
PORT TAB DOWN
BOTH NEUTRAL
PORT STERN UP
NO CHANGE IN LIST
STBD BOW DOWN
340 Sundancer
®
(375 Sundancer
2 • G
ENERAL
O
BOW-UP ANGLE)
STBD TAB DOWN
STBD STERN UP
PORT BOW DOWN
®
)
B
A
OAT
RRANGEMENT
C. P
T
U
OWER
RIM
NIT AND
(W
O
S
ITH
PTIONAL
TERN
E
)
NGINES
The power trim allows the operator to raise and
lower the stern drive units while underway to provide
the ideal boat angle (in relation to water surface) for
a given load and water condition (Figure 2.13.2).
Trimming UP rotates the stern drive and propeller
away from the transom. Trimming DOWN rotates the
stern drive and propeller closer to the transom.
When the stern drives are trimmed DOWN, the bow
of the boat is being forced down. If the trim is in the
full DOWN position when accelerating from idle to
plane, the boat will plane faster with less bow rise.
Once on plane, the stern drive units can be trimmed
UP slightly. This will raise the bow of the boat slightly
and increase speed. You will need to try small dif-
ferences in the stern drive position to determine the
trim position you prefer under various conditions.
E
P
T
FFECTS OF
OWER
RIM
(F
. 2.13.2)
IG
STERN DRIVE-DOWN
STERN DRIVE - CENTERED
G
AUGE
D
I/O
RIVE
STERN DRIVE - UP
2.13
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